Canadian singer Celine Dion has made good on a promise to invite Richard Dunn, who filmed a video that went viral of him singing her version of 'All By Myself' alone in the Las Vegas airport, to one of her shows.

Dunn and his family met Dion backstage at her Caesars Palace show on American Independence Day after she invited the former-Moncton man to her concert in a YouTube post of her own.

In a video of the visit, Dion can be seen telling Dunn about her favourite parts of his video, which has received more than 16 million views on Vimeo, and posing for photos with his family.

"She didn’t rush the time, it was so conversational and so warm and inviting. She is as personable as you would think she would be,” Dunn told CBC News. “To say that I’m flattered is just a massive understatement that they have been so comfortable and confident with what I would do with this that they have allowed us free reign with the video and interviews and sending these pictures out."